MAREES TERRESTRES

BULLETIN D'INFORMATIONS

INTERNATIONAL CENTER FOR EARTH TIDES CENTRE INTERNATIONAL DES MAREES TERRESTRES

International Association of Geodesy - Internationa l Gravity Field Service

(IAG – IGFS)

Publié par l’Université de la Polynésie française

BIM n° 148

ISSN n°0542-6766

1 SEPTEMBRE 2014 Editeur: Prof. Jean-Pierre BARRIOT Observatoire Géodésique de Tahiti

Université de Polynésie française BP6570 – 98702 Faaa Tahiti-Polynésie française

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The precious help of Prof. Bernard Ducarme is gracefully acknowledged for his guidance and help in

completing this issue of the BIM.

All the issues of the BIM can be downloaded from bim-icet.org

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BIM 148

1er septembre 2014

SPECIAL ISSUE 17th International Symposium on Earth Tides

“Understand the Earth” 15-19 April, 2013 Warsaw, Poland

MIERCZYK Z.………….................……………………...………………………………………………………….. Rector Military University of Technology Welcome Address ................................................................. 11907

DUCARME B. ……………………………………………………………………………………………………….. Citation for the Paul Melchior Medal 2013 – Prof. Houtze Hsu .............................................................. 11909

BARRIOT J.-P.. ………………………………………………………………………………………………………

Minutes of the Directing Board of ICET meeting .................................................................................... 11913

PAGIATAKIS S., BOGUSZ J. . ..………...………………………………………………………………………….. Resolutions ETS2013 ............................................................................................................................... 11915

ETS2013 SUMMARY and LIST OF PARTICIPANTS………………………………………………………...11917

LIST OF PREVIOUS EARTH TIDES MEETINGS……….…………………………………………………...11921

SCIENTIFIC PAPERS

VIRTANEN H., BILKER-KOIVULA M., MÄKINEN J., NÄRÄNEN J., RAJA-HALLI A., RUOTSALAINEN H.

Comparison between measurements with the superconducting gravimeter T020 and the absolute gravimeter FG5-221 at Metsähovi, Finland in 2003-2012…………………………………………………………..11923

CADICHEANU N., VAN RUYMBEKE M., PING ZHU.…………………………………………………..……….. On the variability of the coupling between some Earth tides periodicities and earthquake triggering from three important seismic nest regions on Earth .......................................................................................... 11929

PING ZHU, VAN RUYMBEKE M., QUINIF Y., CAMELBEECK TH., MEUS PH. ………………………………. Hydrological and tectonic strain forces measured from a karstic cave using extensometers ................... 11945

VAN RUYMBEKE M., WIELANT F., NOËL J.-P., DUMONT PH. ……………………………………………….. Calibration of pendulum by sinusoidal torque induced with the needles of a watch turning in the gravity field of the Earth............................................................................................................................................... 11961

VOLKOV V.A., DUBROV M.N. …………………………………………………………………..………………. Geodynamical observations using spatially distributed gravimeters, tiltmeters, and laser strainmeters...11971

ADDITIONAL SCIENTIFIC PAPER ZHANG MIAOMIAO, XU JIANQIAO, SUN HEPING, SHEN WENBIN, CHEN XIAODONG………………… Comparison of noise levels of the new iGrav-007 superconducting gravimeter and the SG-065 superconducting gravimeter in Wuhan (China).…………………………………………………………11987

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Rector Military University of Technology Welcome Address

Dear participants of the 17th International Symposium on Earth Tides,

I would like to warmly welcome you to Poland, to the Military University ofTechnology.

The framework for your discussion will be “Understand the Earth”. Although there aremany influential factors, the understanding of the Earth system with its major processes andits trends is one of the requirements for a sustainable development. Earth observations are notonly necessary for the scientific understandings, they are fundamental for most societalactivities ranging from disaster prevention and mitigation, over the provision of resourcessuch as energy, water and food, the understanding of climate change, the protection of thebiosphere, the environment, and human health, to the building and management of aprosperous and sustainable global society. Geodesy is fundamental in meeting this globalchallenge: geodesy provides the foundation on which all Earth observation systems are built.In this function, geodesy provides comprehensive observations of changes in the Earth’sshape, gravity field and rotation.

From the other side that knowledge can be used as a tool to help oneself lead a betterlife. Education is crucial to each society’s success and universities have a vital role to play inthis regard. Higher education generates, transfers and applies the knowledge required fordevelopment to take place. This is very important task in the Information Age with itsknowledge-based economy.

The 17th Symposium is held at the Military University of Technology, so please let mebriefly introduce the University to you.

I would like to emphasize that since the opening for the civil students, several studyprogrammes have been developed, including geodesy with the issues related to thegeodynamics and physical geodesy.

We realise that to take advantage of the full potential of higher education we needcritical knowledge partnership for development. This Symposium is a good opportunity toexchange experiences and form long term relationships and collaboration between our variousinstitutions and countries represented here. I want to encourage all participants to make themost of this opportunity.

I wish you a pleasant stay in Warsaw and very fruitful deliberations at the Symposium.

Gen. Prof. Zygmunt MierczykRector of the Military University of Technology

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Warsaw, April 17, 2013

Earth Tides Commission Medal

Ladies and Gentlemen,Dear Colleagues and Friends,

It is for me an honour and a pleasure to introduce Professor Hsu Hou-Tse. He is notonly an eminent scientist, member of the prestigious Chinese Academy of Sciences, but alsoas he likes to say himself an “old friend”. It is always a pleasure indeed to meet him and enjoyhis sense of humor. He has the remarkable quality of inducing his audience to be happy in thepursuit of science and glad to be talking about it. In a few words he is able to express clearlythe conclusions of a long and sometimes tedious scientific discussion.

Prof. Hsu started his scientific life in physical geodesy under the guidance of ProfessorFang Jun in the middle of the 1950’s and, for more than 50 years now, he was exploring allthe aspects of this rich subject that led him to travel all around the world and tomorrow, atleast mentally, to the planet Mars. With more than 200 scientific publications and severalbooks Prof. Hsu is certainly one leading scientist of our tidal community.

Prof Hsu Hou-Tse started international cooperation for Earth Tides studies incontinental China as early as 1978, when he took part to the scientific mission that theChinese Academy of Sciences and the State Seismological Bureau sent to the RoyalObservatory of Belgium under the direction of Prof. Fang Jun. Between 1979 and 1982 hewas personally involved in the installation of the 8 stations of the Earth tidal profile developedacross China by Prof Paul Melchior and his staff. I had personally the privilege to install withhim stations not only in Wuhan but also in Canton and in Wulumuchi. This project was only astarting point for his activity in Earth tides research. He purchased modern instrumentation tosupersede the old ASKANIA gravimeters available in China at that time, starting withLaCoste & Romberg model G and ET meters. He continued tidal gravity observations inChina and he has successfully operated a first Superconducting gravimeter in Wuhan since1985. This early instrument was renewed and a new permanent station, installed in 1997 forthe Global Geodynamics Project, is still in operation.

Under his leadership the Institute of Geodesy and Geophysics of the Chinese Academyof Sciences became a Centre for Earth Tidal Research in China. Prof Hsu sent many youngscientists abroad to create a scientific task force able to develop theoretical and experimentalresearch in Earth gravity tides, with applications in oceanic loading, atmospheric pressure,Earth's free oscillations and Free Core Nutation.

As president of the IAG Commission on Earth Tides, he worked for the internationalorganization of the Earth’s Tidal research during a period of 8 years. The GlobalGeodynamics Project was launched in 1997 during his mandate.

Besides his commitment to Earth Tides community as scientist, Director of the Instituteof Geodesy and Geophysics of the Chinese Academy of Sciences and former President of theEarth Tides Commission, Prof Hsu was a personal friend of Paul Melchior, who wouldcertainly appreciate that the first medal awarded under his name is granted to Prof. Hsu.

Bernard Ducarme,Georges Lemaître Centre for Earth and Climate Research,Earth and Life Institute, Catholic University of Louvain.

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Earth Tides Commission Medal Diploma

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Earth Tides Commission Medal

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Warsaw, April 16, 2013

Minutes of the Directing Board of International Centre for Earth Tides

Present at the meeting: Heping Sun (representing Harald Schuh), Spiros Pagiatakis, Jean-Pierre Barriot, David Crossley, Bernard Ducarme and Walter Zuern (invited).

After some discussion, the Directing Board of ICET unanimously agreed on the followingpoints:1. GGP matters:

a. concerning the end-user products of GGP, the exact data flows and data formats mustbe precisely defined by a group of experts designed by the Directing Board of ICET. Aproposal should be submitted to Subcommission 3.1 at the next IAG meeting inPostdam in September 2013.

b. a centralized data center seems to be the best way to guarantee a uniform data editingfor GGP.

c. ICET will continue its support to GGP, until at least the next IUGG meeting, includingthe timely delivery of one-minute validated data.

d. in addition, ICET will provide the end-user a track of all the corrections applied to theraw GGP data, from the beginning of all GGP time series.

2. ICET matters:a. ICET will continue to publish on a yearly basis the BIM, that will be available online

on both the GGP and ICET websites. In particular, some of the papers from the 18thInt. Symposium on Earth Tides will be published on the BIM (on a special issue if wehave a sufficient number of papers).

b. As the spectrum of instruments dedicated to the study of Earth Tides is much largerthan the supraconducting gravimeter, it seems better to have two separate servicesunder the umbrella of IGFS. About half of the communications at the 18th Int.Symposium on Earth Tides reporting instrumental results were dedicated to studiesoutside the scope of GGP.

It is to be noted that many of these points have yet to be discussed and finalized by ICET andGGP. In any case, more detailed proposals from ICET and GGP will be presented at the IAGmeeting in Postdam in September 2013. A Directing Board of ICET will take place duringthis event.

J.-P. Barriot, Director of ICET

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Resolutions – ETS2013

1) The participants of the 17th International Symposium on Earth Tides taking intoconsiderationa. the Terms of Reference and Objectives of the IAG SC-3.1b. the increased activities in multidisciplinary research in geodynamics, andc. the widening frequency band and extension of spatial scales of the geodynamic

phenomena that can be captured by a large variety of sensors and observing systems,Recommend that

a. the name of the SC-3.1 be changed to “Geodynamics and Earth Tides” to better reflectthe nature of the research activities,

b. the name of the “International Symposium on Earth Tides” be changed accordingly to“International Symposium on Geodynamics and Earth Tides”,

c. the international symposia under the new name be numbered consecutively from theprevious conferences to ensure continuation,

d. the above changes be effective after the next IUGG General Assembly in 2015, incompliance with the IAG status and bylaws.

2) The participants of the 17th International Symposium on Earth Tides recognizinga. the significant and continued contribution of GGP to geodynamics research,b. the increased demand for GGP data and relevant products for multidisciplinary

research, engineering and operational applications and experimentation,c. the increased demand for data and relevant products observed by a wide range of

sensors including, but not limited to, tilt meters, strain-meters, and spring gravimeters,for multidisciplinary research, engineering and operational applications andexperimentation, and

d. the need to provide the users with the above data and data products in complete,uniform, authoritative and timely fashion

Recommend thata. a new IAG Service be created under the umbrella of IGFS,b. the new service be named “GGP- ICET Service”,c. the new service include two components namely “Global Geodynamics Project -

GGP” and “International Centre of Earth Tides - ICET”.Furthermore, they recommend that

d. a working group be formed immediately to carry out a thorough analysis of the needsof, and prepare a proposal for the creation of the new service, its terms of reference,goals and objectives and structure,

e. ICET continue to operate as usual, provide support to GGP, make available to the end-user a track of all corrections applied to the GGP data, and publish BIM.

3) The participants of the 17th International Symposium on Earth Tides recognizing theimportance of dissemination of the scientific contributions of the symposium recommendthat:a. a number of manuscripts be submitted to the Journal of Geodynamics for publication

for a future Special Edition (SI). The submissions must be within the scope of Journalof Geodynamics and go though the standard peer-review process. The limit will be setat 25 published papers. The Editor-in-chief will have the final say regarding theacceptance/rejection of manuscripts submitted to Journal of Geodynamics.

b. papers with technical and/or instrumentation development and calibration content willbe published in BIM.

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4) The delegates of the 17th International Symposium on Earth Tides accept the proposal byProf. Carla Braitenberg to hold the 18th International Symposium on Earth Tides inTrieste, Italy, in 2016.

5) The participants of the 17th International Symposium on Earth Tides, the IAGCommission 3, the IAG Sub-commission 3.1 and the Global Geodynamics Project thankthe Military University of Technology (MUT), and the sponsors of the symposium,namely the International Association of Geodesy, the Rector of MUT and the Committeefor Geodesy, Polish Academy of Sciences for hosting and supporting this event.Moreover, the delegates thank the Local Organising Committee (LOC), Janusz Bogusz(Head of LOC), Marcin Gałuszkiewicz, Andrzej Araszkiewicz, Katarzyna Kamińska, Anna Kłos, Lidia Rachoń and Karolina Szafranek for their warm welcome and flawless organisation that made the 17th International Symposium on Earth Tides a great scientificsuccess.

Spiros Pagiatakis, Chair of the Sub-Commission 3.1

Janusz Bogusz, Co-Chair of the Sub-Commission 3.1

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ETS2013 Summary

73 participant from 3 different continents, 7 thematic sessions with 55 oral and 32 posterpresentations.

List of participants

No. First name Name e-mail1 Maiko Abe abe@gfz-potsdam.de

2 Andrzej Araszkiewicz aaraszkiewicz@wat.edu.pl

3 Jose Arnoso arnoso@ucm.es

4 Jean-Pierre Barriot jean-pierre.barriot@upf.pf

5 Janusz Bogusz jbogusz@wat.edu.pl

6 Jean-Paul Boy jeanpaul.boy@unistra.fr

7 Ladislav Brimich geofbrim@savba.sk

8 Aleksander Brzeziński alek@cbk.waw.pl

9 Marta Calvo García-Maroto mcalvo@fomento.es

10 Cedric Champollion cedric.champollion@gmail.com

11 Joanne Chauveau joanne.chauveau@etu.unistra.fr

12 Xiaodong Chen chenxd@whigg.ac.cn

13 Beatriz Cordoba b.cordoba@oan.es

14 David Crossley crossley@eas.slu.edu

15 Ove Christian Dahl Omang ove.christian.dahl.omang@kartverket.no

16 Mstislav Dubrov start1mn@mail.ru

17 Bernard Ducarme bf.ducarme@gmail.com

18 Christoph Foerste foer@gfz-potsdam.de

19 Jeff Freymueller liuzw.99@gmail.com

20 Marcin Galuszkiewicz mgaluszkiewicz@wat.edu.pl

21 Andreas Güntner guentner@gfz-potsdam.de

22 Rüdiger Haas rudiger.haas@chalmers.se

23 Basile Hector basile.hector@unistra.fr

24 Christine Heimlich christine.heimlich@unistra.fr

25 Jacques Hinderer jhinderer@unistra.fr

26 H.-T. Hsu hsuh@asch.whigg.ac.cn

27 Xiao Gang Hu hxg432@whigg.ac.cn

28 Thomas Jahr thomas.jahr@uni-jena.de

29 Marek Kaczorowski marekk@cbk.waw.pl

30 Jeff Kennedy jkennedy@usgs.gov

31 Marta Kis kis.marta@mfgi.hu

32 Anna Klos aklos@wat.edu.pl

33 Andras Koppan koppan.andras@mfgi.hu

34 Wiesław Kosek kosek@cbk.waw.pl

35 Hana Krasna hana.krasna@tuwien.ac.at

36 Nicolas Le Moigne nicolas.lemoigne@gm.univ-montp2.fr

37 Hui LI lihuidz@public.wh.hb.cn

38 Shaocong Luo luosc@asch.whigg.ac.cn

39 Anthony Memin Anthony.Memin@utas.edu.au

40 Gyula Mentes mentes@ggki.hu

41 Bruno Meurers bruno.meurers@univie.ac.at

42 Vadim Milyukov milyukov@sai.msu.ru

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43 Jolanta Nastula nastula@cbk.waw.pl

44 Tomasz Olszak t.olszak@gik.pw.edu.pl

45 Spiros Pagiatakis spiros@yorku.ca

46 Vojtech Palinkas vojtech.palinkas@pecny.cz

47 Lidia Rachon lrachon@wat.edu.pl

48 Arttu Raja-Halli arttu.raja-halli@fgi.fi

49 Marcin Rajner mrajner@gik.pw.edu.pl

50 Umberto Riccardi umbricca@unina.it

51 Bernd Ritschel rit@gfz-potsdam.de

52 Yves Rogister yves.rogister@unistra.fr

53 Severine Rosat Severine.Rosat@unistra.fr

54 Pierre Rouleau prouleau@grenfell.mun.ca

55 Hannu Ruotsalainen hannu.ruotsalainen@fgi.fi

56 Peter Schindler peter.schindler@uni-jena.de

57 Harald Schuh schuh@gfz-potsdam.de

58 Holger Steffen holger-soren.steffen@lm.se

59 Rebekka Steffen rsteffen@ucalgary.ca

60 He-Ping Sun heping@asch.whigg.ac.cn

61 Karolina Szafranek kszafranek@wat.edu.pl

62 Małgorzata Świerczyńska goswierk@gmail.com

63 Milos Valko mvalko@kma.zcu.cz

64 Michele van Ruymbeke labvruy@oma.be

65 Heikki Virtanen heikki.virtanen@fgi.fi

66 Viktor A. Volkov vav_volkov@mail.ru

67 Herbert Wilmes herbert.wilmes@bkg.bund.de

68 Hartmut Wziontek Hartmut.Wziontek@bkg.bund.de

69 Cui Xiaoming cxm02010331@163.com

70 Baili Zhou Zhoubl@asch.whigg.ac.cn

71 Jiangcun Zhou zjc@asch.whigg.ac.cn

72 Ping Zhu zhuping@oma.be

73 Walter Zürn walter.zuern@partner.kit.edu

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ETS2013 Group Photo

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List of Previous Earth Tides Meetings

1 24-26.04.1957 Brussels, Belgium2 21-26.07.1958 Munich, Germany3 06-11.07.1959 Trieste, Italy4 05-10.06.1961 Brussels, Belgium5 01-06.06.1964 Brussels, Belgium6 15-20.09.1969 Strasbourg, France7 10-14.09.1973 Sopron, Hungary8 19-24.09.1977 Bonn, Germany9 17-22.08.1981 New York, USA

10 23-27.09.1985 Madrid, Spain11 31.07-5.08.1989 Helsinki, Finland12 04-07.08.1993 Beijing, China13 22-25.07.1997 Brussels, Belgium14 28.08-1.09.2000 Mizusawa, Japan15 02-06.08.2004 Ottawa, Canada16 01-05.09.2008 Jena, Germany17 15-18.04.2013 Warsaw, Poland

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